<template>
	<view>
		<my-search @myclick="gotoSearch"></my-search>
		<view class="scroll-view-container">
			<!-- 左侧滑动区 -->
			<scroll-view scroll-y="true" :style="{height: wh+'px'}" class="left-scroll-view">
				<block v-for="(item,i) in cateList" :key="i">
					<view :class="['left-scroll-view-item',i===active?'active':'']" @click="activeChanged(i)">{{item.cat_name}}</view>
				</block>
				
			</scroll-view>
			<!-- 右侧滑动区 -->
			<scroll-view scroll-y="true" :style="{height: wh+'px'}" class="right-scroll-view" :scroll-top="srollTop">
					<view class="cate-lv2" v-for="(item2,i2) in cateLevel2" :key="i2">
						<view class="cate-lv2-title">
							{{item2.cat_name}}
						</view>
						<view class="cate-lv3-list">
							<view class="cate-lv3-item" v-for="(item3,i3) in item2.children" :key="i3" @click="gotoGoodsList(item3.cat_id)">
								<!-- <image :src="item3.cat_icon.replace('https://api-ugo-dev.itheima.net','http://api-ugo-web.itheima.net')" mode=""></image> -->
								<image :src="item3.cat_icon.replace('https://api-hmugo-web.itheima.net','http://api-hmugo-web.itheima.net')" mode=""></image>
								<text>{{item3.cat_name}}</text>
							</view>
						</view>
					</view>
			</scroll-view>
		</view>
	</view>
</template>

<script>
	import badgeMix from '@/mixins/tabbar_badge.js'
	export default {
		mixins:[badgeMix],
		data() {
			return {
				wh:0,
				cateList:[],
				cateLevel2:[],
				active:0,
				srollTop:0
			};
		},
		onLoad() {
			const sysInfo = uni.getSystemInfoSync()
			
			this.wh = sysInfo.windowHeight-50
			this.getCateList()
		},
		methods:{
			// 获取分类列表数据
			async getCateList(){
				const {data:res} = await uni.$http.get('/api/public/v1/categories')
				if(res.meta.status !== 200) return uni.$showMsg()
				this.cateList = res.message
				this.cateLevel2 = res.message[0].children
			},
			activeChanged(i){
				this.active = i
				this.cateLevel2 = this.cateList[i].children
				this.srollTop = this.srollTop === 0 ? 1 : 0
			},
			gotoGoodsList(item){
				uni.navigateTo({
					url:'/subpkg/goods_list/goods_list?cid='+item
				})
			},
			gotoSearch(){
				uni.navigateTo({
					url:'/subpkg/search/search'
				})
			}
		}
	}
</script>

<style lang="scss">
.scroll-view-container{
	display: flex;
	.left-scroll-view{
		width: 120px;
		.left-scroll-view-item{
			background-color: #F7F7F7;
			line-height: 60px;
			text-align: center;
			font-size: 12px;
			
			&.active{
				background-color: #FFFFFF;
				position: relative;
				
				&::before{
					content: ' ';
					display: block;
					width: 3px;
					height: 30px;
					background-color: #C00000;
					position: absolute;
					top:50%;
					left: 0;
					transform: translateY(-50%);
				}
			}
		}
	}
}

.cate-lv2-title{
	font-size: 12px;
	font-weight: bold;
	text-align: center;
	padding: 15px 0;
}

.right-scroll-view{
	background-color: #FFFFFF;
}

.cate-lv3-list{
	display: flex;
	flex-wrap: wrap;
	.cate-lv3-item{
		width: 33.33%;
		display: flex;
		flex-direction: column;
		justify-content: center;
		align-items: center;
		margin-bottom: 10px;
		image{
			width: 60px;
			height: 60px;
		}
		text{
			font-size: 12px;
		}
	}
}
</style>
